DM Sam Russell has created a Google Spreadsheet, a tool called "Is This Allowed Too?" to help speed up chargen and session zero.
Do you need a random tavern name generator? What about a short description of the building and a little information about the staff?
There are times in a tabletop RPG session when the GM needs to quickly name a cult.
A generator to help busy GMs out when after rescuing the merchant and his wagon from the raiders one of the players asks, "What's in the wagon?"
Seeing in the future is one of the hardest things a GM has to do, and yet it's not uncommon to find fantasy games with spells or magic items that give the PCs the power to do precisely that.
Generate a colourfully named random potion with positive and tempory cosmetic side effects with a click of a button.